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From Mathias De Maré <mathias.dem...@gmail.com>
Subject Re: Disabling tables in HBase 0.20
Date Tue, 18 Aug 2009 07:13:44 GMT
Thanks. Waiting does indeed seem to be the best way to 'solve' the problem
:-)

On Mon, Aug 17, 2009 at 5:15 PM, Jean-Daniel Cryans <jdcryans@apache.org>wrote:

> Mathias,
>
> Disabling is still not done inline so you won't get feedback if it
> takes time to disable your table. What takes that time is that it has
> to flush all the data kept in memstore so for example if you have 20
> regions in a region server and they are near full, it could take
> minutes.
>
> So maybe wait 1-2 minutes, do a flush '.META.' and major_compact
> '.META.' just to be sure, and then reissue a disable. If it doesn't
> work, then you may have hit the bug that blocks the release of HBase
> 0.20 (HBASE-1761). Or you can also try to enable it.
>
> J-D
>
> 2009/8/17 Mathias De Maré <mathias.demare@gmail.com>:
> > Hi,
> >
> > I tried to disable a table using the shell, and got an Exception:
> >
> > hbase(main):004:0* disable 'url'
> > NativeException: org.apache.hadoop.hbase.RegionException: Retries
> exhausted,
> > it took too long to wait for the table url to be disabled.
> >    from org/apache/hadoop/hbase/client/HBaseAdmin.java:406:in
> > `disableTable'
> >    from org/apache/hadoop/hbase/client/HBaseAdmin.java:366:in
> > `disableTable'
> >    from sun/reflect/NativeMethodAccessorImpl.java:-2:in `invoke0'
> >    from sun/reflect/NativeMethodAccessorImpl.java:39:in `invoke'
> >    from sun/reflect/DelegatingMethodAccessorImpl.java:25:in `invoke'
> >    from java/lang/reflect/Method.java:597:in `invoke'
> >    from org/jruby/javasupport/JavaMethod.java:298:in
> > `invokeWithExceptionHandling'
> >    from org/jruby/javasupport/JavaMethod.java:259:in `invoke'
> >    from org/jruby/java/invokers/InstanceMethodInvoker.java:44:in `call'
> >    from org/jruby/runtime/callsite/CachingCallSite.java:273:in
> > `cacheAndCall'
> >    from org/jruby/runtime/callsite/CachingCallSite.java:112:in `call'
> >    from org/jruby/ast/CallOneArgNode.java:57:in `interpret'
> >    from org/jruby/ast/NewlineNode.java:104:in `interpret'
> >    from org/jruby/ast/BlockNode.java:71:in `interpret'
> >    from org/jruby/internal/runtime/methods/InterpretedMethod.java:163:in
> > `call'
> >    from org/jruby/internal/runtime/methods/DefaultMethod.java:144:in
> `call'
> > ... 108 levels...
> >    from root/installation/hbase/bin/$_dot_dot_/bin/hirb#start:-1:in
> `call'
> >    from org/jruby/internal/runtime/methods/DynamicMethod.java:226:in
> `call'
> >    from org/jruby/internal/runtime/methods/CompiledMethod.java:211:in
> > `call'
> >    from org/jruby/internal/runtime/methods/CompiledMethod.java:71:in
> `call'
> >    from org/jruby/runtime/callsite/CachingCallSite.java:253:in
> > `cacheAndCall'
> >    from org/jruby/runtime/callsite/CachingCallSite.java:72:in `call'
> >    from root/installation/hbase/bin/$_dot_dot_/bin/hirb.rb:487:in
> > `__file__'
> >    from root/installation/hbase/bin/$_dot_dot_/bin/hirb.rb:-1:in `load'
> >    from org/jruby/Ruby.java:577:in `runScript'
> >    from org/jruby/Ruby.java:480:in `runNormally'
> >    from org/jruby/Ruby.java:354:in `runFromMain'
> >    from org/jruby/Main.java:229:in `run'
> >    from org/jruby/Main.java:110:in `run'
> >    from org/jruby/Main.java:94:in `main'
> >    from /root/installation/hbase/bin/../bin/hirb.rb:346:in `disable'
> >    from (hbase):5hbase(main):005:0>
> >
> > Now, it seems I can no longer access any data in that table. (For
> example, I
> > can't do 'count 'url'' anymore.)
> > It looks somewhat related to
> > https://issues.apache.org/jira/browse/HBASE-1636 .
> > Is there a way to still get the data out of that table? And to disable
> and
> > enable the table, so I can change the blocksize?
> >
> > Mathias
> >
>

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